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Detailed Reference Information |
Norabuena, E.O., Dixon, T.H., Stein, S. and Harrison, C.G.A. (1999). Decelerating Nazca-South America and Nazca-Pacific Plate motions. Geophysical Research Letters 26: doi: 10.1029/1999GL005394. issn: 0094-8276. |
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Space geodetic estimates of the rate of Nazca-South America convergence and Nazca-Pacific spreading averaging over several years show that present day rates are significantly slower than the 3 million year average NUVEL-1A model. The implied rates of deceleration are consistent with longer term trends extending back to at least 20 Ma, about the time of initiation of Andes growth, and may reflect consequences of ongoing subduction and construction of the Andes, e.g., increased friction and viscous drag on the subducted slab as the leading edge of South America thickens. ¿ 1999 American Geophysical Union |
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BACKGROUND DATA FILES |
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Abstract |
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Keywords
Geodesy and Gravity, Space geodetic surveys, Tectonophysics, Plate motions—general, Information Related to Geographic Region, South America |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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